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7.2 ENVIRONMENTAL CONDITION (MECHANICAL)
Storage and Transport: (according to IEC 721 / EN 60721 class 2M2)
Vibration
(random vibration)
IEC 68-2-64
EN 60068-2-64
Free fall
ISO 2248
EN 22248
8 MECHANICAL REQUIREMENTS
8.1 VIBRATION AND SHOCK
All testing shall be done in each of three mutually perpendicular axes, referenced to the position of
the system as it is in front of the user (i.e., front-to back, side-to-side, and top-to-bottom).
8.1.1 Non-Operating
The unit should suffer minimal visible cosmetic damage or damage that presents a safety hazard, or
impairs the setup and operation of the system after testing.
Sinusoidal Vibration: 0.75 G zero-to-peak, 10 to 500Hz, 0.5 octave / minute sweep rate. This
requires one sweep, 10 to 500 to 10Hz, along each of the three axes.
Random Vibration: 0.008 G
for each of the three axes.
Half Sine Wave Shock: 120 G peak, half sine pulse, 2 ms pulse duration. Testing shall consist of
one shock in each direction in each axis, for a total of 6 shock inputs.
Square Wave Shock: 40 G peak acceleration, 160 inches / second velocity change. There shall be
one shock in each direction in each axis, for a total of 6 shock inputs.
Test Procedure
IEC 68/EN 60068
Freq. range
Change
Spectral
acceleration
density
Accel. RMS
Axis
Duration/Axis
Weight
Fall height
Direction and number
Underground
2
/Hz, 10 to 500 Hz, nominal 2 GRMS. The test shall be for one hour
41
Hz
5~10 10~100 100~500
db/oct
+12
-6
2
3
m
/s
0.75
2
m/s
11.4
-
3
Minutes
30
kg
0~9.1
18.2~27.2
m
0.9
0.61
1 time on 1 corner, 3 edge,
6 surface
concrete
9.1~18.2
0.76
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